Not the best connectors. However it’s really great you are helping people who are not experts as a lot of off grid people need to learn how to do things properly and be safe. Great content and work guys!

This is definitely the best reference for installing these terminals that I've found. And I absolutely believe the 6AWG thick stranded romex you have is the correct wire to use with the terminals, it makes all the difference in my installation to use the correct wires for this AC In/Out. Everything here agrees with the inverter manual. I do push my wires in with the tip of the wire strippers, but that's after wrapping additional stronger padding around the wire so there's no abrasion--I'll try the method you showed instead! Thank you for posting this... Seriously differentiating yourself as a leading Victron distributor for knowledge like this. There's an old midnite e-panel building video where they show modifying lineman(?) pliers by sanding down the grit and putting a smooth/curved edge on them, then they use those pliers to make precise bends in thick but stiff wires like this, which inspired me to add temporary padding before trying to use pliers to wrangle wire insulation.

Thank you "so" much for this video! I was having the hardest time trying to cut them all the same length. You guys rock!

Love the tug test, you are the only guy on youtube suggesting using a longer section of wire in the inverter case, genius makes a much more flexible and less likely to have a poor connection with increased resistance possibly creating heat melting the wire and/or connector. Awesome tips here, you obviously have a lot of experience doing this. Larry

the only thing i dont like about this inverter is the ac connectors but this video was very helpful, good job !

I saw this video the day before I hooked it up and with out the knowledge in your video it would have been extremely difficult to do But with your advice it was a snap! Thanks Dom

Great video! I wish I would have seen it before I installed mine, in my RV, that definitely looks like a much easier method. I straight cut them to have a shorter length inside. However I did measure the 3/4 strip & put a mark with a sharpy at 1" on the insulation so I knew when they were all shoved home in the connector. I fought with those wires getting them in...I think I learned a few new words along the way as well...lol I will be redoing those connections your way, in the spring before we start using our RV again. I just hope I left myself enough extra to redo it..if not it will be an expensive lesson buying another roll of romex.. Thank you, Brad

Thank you, this was very helpful. I have this exact product arriving in a few days, and have been trying to find instructions like this for how to properly wire up this kind of terminal. Good timing!

I'm about to wire one of these up and this helps tremendously. Thanks!

Excellent video! Explains things perfectly. Thank you!!

Doing this install now and using this video for reference has made it much easier. Other videos tell you to do the exact opposite of this video. I should be done shortly and have collected video allong the way. Thank you for this video.

EVERY MultiPlus2 owner should WATCH THIS. I've seen other videos where the CONNECTORS were completely MELTED and the unit was totally USELESS.

Excellent knowledge your sharing, just happens I will be connecting up one off theses soon, il be sure to follow your lead👌🇦🇺

Thankyou. Doing this install today and wanted to be sure how to do it right

Thanks for this video! Made wiring simple and easy.

FYI. The Romex you are using for example is actually 6/3, NOT 6/4. Some viewers might get confused by this.

Thanks for the video. I love the Multiplus II, but hate the spring terminals. It took me about two hours to connect the AC wires to the spring terminals. If you use 6/3 Romex, it would probably be easy. But, I used 6/4 SOOW. The wires are not as stiff as romex and are extremely difficult to insert into the spring terminals. Every screw driver I tried (and I have several) would not depress the spring terminals enough to insert the wires enough for the terminals to hold the wire securely. Using needlenose pliers did not work because the wires are too soft to push into the terminals. At the other end of the cables, I installed a spice box with screw terminals that took about 5 minutes to hook up. Another thing of note, connecting the wires on a workbench is probably significantly easier than connecting them in the RV.

He said...."while its not my preference, most customers are wiring this up with romex. This is a 6/4 romex." but then he never says what his preference is? What is your preference?

Good man, good job done there. However I'm slightly concerned about this kink in case the radius of bending is lower on a lower quality CCA type wires which have flooded the market. IMO I'd like to put a ferrite ring over there and wrap the cable around it achieving two goals at once: Stoppage anchor in case of pulling the wires accidently and noise filtering which is present in all electronic equipment.

I am very happy with my Multiplus 2. It’s an amazing piece of equipment. Using exposed Romex wire is not recommended because it doesn’t provide the same protection as conduit. Romex is a type of cable which combines several THHN conductors together in a plastic sheath, but is intended to be used inside a concealed wall, such as running a circuit inside the wall of your house for a range or dryer. It is not allowed to be exposed, that's why any exposed wires are always inside a type of conduit, EMT, PVC or flexible conduit. When you use Romex in an exposed location it is unsafe according to the NEC. Most people doing DIY solar should understand this basic rule, and not have any AC wires exposed in their installation. Flexible conduit is the easiest to work with, and all the connectors and fittings are available at a big box store like HD. If you know an electrician, ask for their advice, they are all trained in how to install everything to code.

If you must ever use pliers to grip something and not dsmage the surface, you could wrap either insulating tape, or what we call "masking tape" (in Australia) around each of the jaws. This still provides a fairly solid grip, and damages the object less. Good video, I'll watch them all.

they remind me of the speed wire slots on outlets in homes these can get hot and fail, but its what it is.

Why are you concerned about a good seal on that AC wiring when the 12v side is wide open?

Good info to learn before I start. Thank you. For my AC out I am going to a generator hook up point that is not being used. 50 AMP RV. 4 wires in the generator hook up that goes to my AC distribution panel. Red, Black, White, and Green. How would I hook this up to my multiplus II AC out ports?

Great video! Wondering if it would be a good idea to put ferrules on the end of the wire?

I just used your method today and it worked beautifully "except" the green block for L1 on AC Out separated from the rest of what I thought was a solid block. Is this an issue or am I still fine?

I have a generator transfer switch. I don't have a generator. My fith wheel has gen prep. I am wondering can I just pull out the transfer switch run 6/4 wire on the incoming shore power side use lug blocks to the inverter? Then from the inverter back to where the transfer switch was lug blocks to the line going to the breaker panel? Or would it just be best to pull all the 6/4 wire out that came on the 5th wheel make a continuous run from the shore power to the inverter inverter continuous run to the breaker panel?

Romax isn’t your preference, what would be the ideal water to use. I’m currently rewiring my motorhome to install a multi plus ii inverter

The best Multiplus 2 wireing demonstration yet.

Can you install 2 of these units together?

I think this might be a older version model or the GX model changed. It has a screw terminal now. Not sure If I have to use ferulle's with it though.

Just to make sure I understand. That was if you were wiring in shore power or a generator, correct?

what is the smallest wire size you can use on the AC out 1 & 2? I'm only going to run a 20 amp outlet off either of them (for inside hobby battery backup). the outlets will be only about 2ft away from the multiplus unit. I can't see using 6awg wire for an application that won't draw more than 20amps.

Thank you

I dont understand the purpose of the screwdriver jamming it in there for an install? Are these not push in wire connectors? They push in easy but dont pull out without the screwdiver??

I know that AC 1 Out is used to go to your breaker panel in your RV but what is AC 2 out used for?

You mentioned that it's not your favorite choice of wire? Is that because it's so stiff with fewer larger strands than a more flexible wire? What would you recommend? I assume thinner stranded wire but not ferrules since they would impede the springs ability to spread out the wire and make a good connection?

Great, great video instructions. I am looking to buy a MultiPlus II 3000/120 for my Sprinter and this is very informative. Do you sell them pre-programmed per customer?

On my multiplus 24/3000 Victron inverter, I only have three connectors, which I wired up with 6/3. The ground I have going separately to its own lightning rod. I’m wondering if I need to ground to the main panel, as I have two 50 amp breakers for my solar connection. The only ground on the main panel goes to its own in ground rod , i’m figuring that’s part of the electrical companys. My problem now is that my lights flicker when I’m using a load like the microwave. Is this because of the ground or lack of? 🖖

There is a reason we don't use that connection on outlets/switches. A lot of mobile homes have burned because of them. My EG4 and SolArk have better connections than those.

you dont use ferrules ?

Do they offer a different method to connect wires??? I hate this spring method. This is the only reason I hesitate to purchase Victron, and Ivwant to purchase a Victron!!! Just can’t buy with this connection system!

Great! But as a former electrician I would like to se a nice loop of the wires inside instead 🙏☀

6/3 Marine grade with white black and green, that's what you should use, where's the ferrule?

I wouldn't be pulling hard u can break the circuit board .... Keep it up

thanks COOP ...

When I remove the screwdriver, the wire just pulls out… these spring terminals seem like absolute garbage….

SO WHY DOESN’T VICTRON FIX THIS AND PUT BOLT DOWN TERMINALS I AM A BIG FAN OF VICTRON BUT I HATE THOSE SPRING CONNECTORS ABSOLUTELY UNRELIABLE!!! I CAN NOT JUSTIFY USING VICTRON ON MY JOBS UNTIL THIS IS CORRECTED!

It's actually called 6/3 wire...not 6/4....(They don't count the bare ground on the packaging)...just saying....also you should have used ferrules.

So dumb that they use spring terminals and not screw down terminals. Much better install than I've seen other people do... but why not use SOOW or SEOOW? Still 600V but much more flexible. Crimp a ferrule on the end of each wire as well.

I love Victron components and I have 2 of these MPs but the fact you have to make a video showing how to use these connectors says it all. They are crap and should have never been used. Also, your thought that the grommet has to be tight to seal is hilarious given the giant slot just to the right of the gromets. Not at all important. You need enough grommet to keep the wire from chafing on the metal and then the wire should be secured tightly as early as possible exciting the housing. Movement of wires is the enemy. And yes, I go straight in with my wire. I make sure they aren't too short to begin with.

I don’t think making 180 turns that tight is recommended wiring

mrbeast

Romex in an RV? Not a best practice, even though cheaper than the good stuff. Use ferrules and you don't have to fuss with the screwdriver. This video actually damages your brand.

Using that type of cable is bull crap! Those terminals are for finely stranded wire with crimp ferules such as type MTW. Read what the RED caution label tells you.

I cringe at that thick stranded wire... and no ferrules? To each his own I guess, but for what these devices cost... spring for better wire, and be gentle on the equipment.